Hi all,
I have to evaluate if JBoss Rules is a viable solution in this scenario:
We have to monitor a large network using performance alarms. These
alarms arrive every 15 minutes. We don't know the real rate, but peaks
of many tens of thousands of alarms every 15 minutes must be managed in
a timely way.
We want to use JBoss Rules to correlate these alarms, in order to show
less higher level alarms to the users .
We have basically 2 use cases:
1) I have to correlate the alarms on a single node of the network. (for
example in node A I have 2 alarms of different severity about the
connection with node B, so I aggregate everything in a third alarm
saying "I cannot connect to node B from node A"). In this scenario I
have many workingMemories (one for each node) and not so many facts for
each working memory. The performance of JBossRules is very very good
(almost linear with the number of nodes)
2) I have to correlate alarms among the nodes. (for example all nodes
connecting with a node A have an alarm "I cannot connect to node A from
node ...", I want to create an alarm "The node A is unreachable").
In this scenario I'm very worried about the performance of JBoss Rules,
as I prepared a test case (in attachment) and I inferred that the growth
is highly non linear on the number of the facts. Is this performance
data wrong? Am I doing something stupid? Can someone comment?
Here are the numbers (The numbers are not so important, but rate they
grows is)
Number of Facts Time to assert alla the new allarms (seconds) Time to
modify the alarms to close them (seconds) Total
1000 1.735 0.969 2.704
2000 5.875 3.000 8.875
3000 12.281 6.406 18.687
4000 23.672 11.672 35.344
6000 52.282 23.250 75.532
8000 87.188 42.532 129.720
12000 200.767 94.642 295.409
16000 360.909 176.579 537.488
20000 518.019 263.158 781.177
Or in a graph:
Thanks a lot for your interest.
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